The 3RT1336-1AK60: The 23 kW at 230 V (60 °C) rating is the motor-switching capacity under a standard 230 V three-phase supply at elevated ambient temperature — the rating that governs most European panel designs. The AC-2 rating of 11 kW at 400 V covers slip-ring motor loads where starting current is moderate. Insulation voltage of 690 V means the contactor can be used in 400/690 V systems without derating the internal creepage distances. The contactor carries a mechanical life of 10,000,000 cycles typical, and a maximum switching rate of 1,000 operations per hour at AC-1. The auxiliary contact block is rated for 10 A at 24 V, 6 A at 230 V, and 3 A at 400 V — these are the values to check when coordinating with a PLC output or a control relay.
Main current circuit connections use screw-type terminals. The minimum permissible cross-section at 40 °C and 60 °C is 16 mm² for the main circuit.